/Engine/Plugins/Interchange/Runtime/Source/Import/Public/MaterialX/MaterialXUtils/MaterialXBase.h
Add a texcoord input to the tiledimage nodes if the input is missing, and connect it to a texcoord node in the nodegraph This function should be called before the subgraphs substitution to avoid missing UVs input on a texture See for example standard_surface_brick_procedural where the tiledimage nodes have no texcoord input
static void AddTexCoordToTiledImageNodes ( MaterialX::ElementPtr Graph )